IP Library › Granted Patent US 6,758,940
Granted Patent Utility
US 6,758,940 · Confirmation No. 4783

APPARATUS AND METHOD FOR CONTROLLING BOILING CONDITIONS OF HOT PHOSPHORIC ACID SOLUTION WITH PRESSURE ADJUSTMENT

Inventor: John Chiu
Patented Case View Patent ↗ View Publication ↗
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 Code Description Pages PDF
2012-03-22 LET. Miscellaneous Incoming Letter 2 View
2012-03-22 N417 Electronic Filing System Acknowledgment Receipt 2 View
2011-05-09 EBCC.AD Notice of Change of Address Place in File Wrapper Due to Electronic Business Center(EBC) Customer Number Update 1 View
2004-02-02 IFEE Issue Fee Payment (PTO-85B) 1 View
2001-02-28 TRNA Transmittal of New Application 1 View
2001-02-28 SPEC Specification 11 View
2001-02-28 CLM Claims 3 View
2001-02-28 ABST Abstract 1 View
2001-02-28 DRW Drawings-only black and white line drawings 3 View
2001-02-28 OATH Oath or Declaration filed 2 View
2001-02-28 LET. Miscellaneous Incoming Letter 1 View
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Quick Facts
Patent No.
US 6,758,940
App. No.
09/796,166
Filed
2001-02-28
Granted
2004-07-06
Pub. No.
US20020007803A1
Art Unit
1763
PTA
-34 days